/*
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 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License, Version 3, as
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 *  Additional permission under GNU GPL version 3 section 7:
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 *  KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs.
 *  Hence, KNIME and ECLIPSE are both independent programs and are not
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 *  Additional permission relating to nodes for KNIME that extend the Node
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package org.knime.filehandling.core.fs.tests.integration.path;

import static org.junit.Assert.assertEquals;

import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.Path;

import org.junit.Test;
import org.knime.filehandling.core.fs.tests.integration.AbstractParameterizedFSTest;
import org.knime.filehandling.core.testing.FSTestInitializer;
import org.knime.filehandling.core.util.IOESupplier;

public class SubPathTest extends AbstractParameterizedFSTest {

    public SubPathTest(final String fsType, final IOESupplier<FSTestInitializer> testInitializer) throws IOException {
        super(fsType, testInitializer);
    }

    @Test
    public void testSubpath() {
        final FileSystem fs = getFileSystem();
        final Path path = fs.getPath(fs.getRootDirectories().iterator().next().toString(), "0", "1", "2", "3");
        final Path expectedSubpath = fs.getPath("0", "1", "2", "3");

        assertEquals(expectedSubpath, path.subpath(0, 4));
        assertEquals(expectedSubpath.toString(), path.subpath(0, 4).toString());
    }

    @Test
    public void testSubpath2() {
        final FileSystem fs = getFileSystem();
        final Path path = fs.getPath(fs.getRootDirectories().iterator().next().toString(), "0", "1", "2", "3");
        final Path expectedSubpath = fs.getPath("0", "1", "2", fs.getSeparator());

        assertEquals(expectedSubpath, path.subpath(0, 3));
        assertEquals(expectedSubpath.toString(), path.subpath(0, 3).toString());
    }

    @Test
    public void testSubpath2a() {
        final FileSystem fs = getFileSystem();
        final Path path = fs.getPath("0", "1", "2", "3");
        final Path expectedSubpath = fs.getPath("0", "1", "2", fs.getSeparator());

        assertEquals(expectedSubpath, path.subpath(0, 3));
        assertEquals(expectedSubpath.toString(), path.subpath(0, 3).toString());
    }

    @Test
    public void testSubpath3() {
        final FileSystem fs = getFileSystem();
        final Path path = fs.getPath(fs.getRootDirectories().iterator().next().toString(), "ii");
        final Path expectedSubpath = fs.getPath("ii");

        assertEquals(expectedSubpath, path.subpath(0, 1));
        assertEquals(expectedSubpath.toString(), path.subpath(0, 1).toString());
    }

    @Test(expected = IllegalArgumentException.class)
    public void testSubpath4() {
        getFileSystem().getPath("0", "1").subpath(-1, 0);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testSubpathBeginAfterEnd() {
        getFileSystem().getPath("0", "1", "2", "3").subpath(2, 1);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testSubpathBeginAfterEnd2() {
        getFileSystem().getPath("0", "1", "2", "3").subpath(4, 0);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testSubpathBeginEqualsEnd() {
        getFileSystem().getPath("0", "1", "2", "3").subpath(0, 0);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testSubpathEndTooHigh() {
        getFileSystem().getPath("0", "1", "2", "3").subpath(0, 5);
    }

}
